B3A52

Active Aerodynamic Feature D Actuator Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$167–556 (est.)

Symptoms

Active aerodynamic system does not work
Check Engine light comes on
Reduced aerodynamic efficiency at high speeds
Unusual noises during operation of the mechanism

Causes

Actuator malfunction
Wiring harness damage
Power problems
ECU software failure
Mechanical obstructions or jamming

How to Fix

Check the condition of the actuator
Check the integrity of the wiring harness and connectors
Check the supply voltage of the mechanism
Scan the system for other errors
If necessary, replace the mechanism or repair the wiring
Update ECU software (if required)

Related codes

B3A51 B3A53 B3A54